JP5792579B2 - Harness type safety belt - Google Patents

Description

  The present invention relates to a harness-type safety belt worn to prevent a crash during work at a high place.

  When working at a high place such as a construction site, a safety belt is used to prevent a worker from falling and to ensure safety. As a safety belt, in addition to a torso belt type safety belt that supports the impact load at the time of crash prevention with a torso belt attached to the operator's torso, the impact load at the time of crash prevention is applied to multiple parts such as the shoulders and thighs of the worker's body In general, a harness-type safety belt that is dispersed and supported is used.

  As a harness-type safety belt, for example, the one described in Patent Document 1 is known. This harness-type safety belt has a pair of shoulder belts that intersect with D-rings disposed on the operator's back, and a pair of thigh belts that are connected to the lower ends of the shoulder belts. And this harness type safety belt hangs a pair of shoulder belts on both shoulders of the worker, and also attaches a pair of thigh belts to the thighs of both feet of the worker, One end of the lanyard is connected and the other end of the lanyard is connected to a structure on the work site.

  By the way, when a tool bag containing a work tool is to be carried, the tool bag can be suspended from the body belt in the body belt type safety belt, whereas the harness type safety belt described in Patent Document 1 above. Can not hang the tool bag because there is no body belt around the operator's body.

  In view of this, there has been a request from the user to equip the body belt to allow the tool bag to be suspended even in the harness-type safety belt. In order to meet the demand, for example, in the harness-type safety belt described in FIGS. 10 and 11 of Patent Document 2, a belt belt holder is attached to the middle of each shoulder belt, and a belt through hole formed in the body belt holder. The torso belt is inserted into the body.

  Then, when the body belt is inserted into the belt through hole of the body belt holder, the body belt is also inserted into the belt through hole of the tool bag in common, so that the tool bag can be suspended.

JP 2009-112368 A JP 2006-223639 A

  However, the harness type safety belt in which the body belt is inserted through the belt through hole as in Patent Document 2 has a problem that the detachability of the body belt is inferior.

  In other words, the tool bag may be temporarily removed because it becomes light at work breaks, etc., but in order to remove the tool bag, it is necessary to pull out the torso belt from the belt through hole of the torso belt holder. When the drum belt is pulled out, the drum belt is also removed from the belt hole of the tool bag, and the tool bag and the drum belt are separated. For this reason, when the operation is resumed, it is necessary to insert the body belt again through the belt through holes of the plurality of body belt holders and the belt through holes of the tool bag, which is very troublesome.

  The problem to be solved by the present invention is to provide a harness-type safety belt excellent in detachability operability of the waist belt.

  In order to solve the above-mentioned problem, a pair of D-rings arranged on the operator's back is divided into two branches extending upward and passing through both shoulders of the operator, and a pair of front sides of the operator extending downward from both shoulders. A shoulder belt, a pair of thigh belts connected to the lower ends of the shoulder belts, a torso belt buckle for releasably connecting both ends of the torso belt wound around the operator's torso to the shoulder belt, and the torso belt The harness type safety belt has a configuration including a center buckle that removably connects the pair of shoulder belts at the same height as the buckle.

  In this way, when attaching the torso belt, attach the tool bag to the torso belt in advance before attaching the torso belt, wind the torso belt around the torso, and then attach both ends of the torso belt to the shoulder belt with the torso belt buckle. By connecting to the body belt, it is possible to wear the waist belt. At this time, since the pair of shoulder belts are connected to each other at the same height as the waist belt buckle by the center buckle, the opening of the shoulder belt and the loosening of the waist belt can be prevented at the same time. When removing the waist belt, it is possible to separate the waist belt buckle so that both ends of the waist belt are separated from the shoulder belt, and the waist belt can be removed with the tool bag attached. When attaching the harness-type safety belt to the body or removing it from the body, the pair of shoulder belts can be opened to the left and right by separating the center buckle. Easy to remove from shoulder.

  The harness-type safety belt includes a pair of rear center belts extending downward from the center of the back of the worker from the D-ring stopper, and a pair of thigh belts that extend from the lower end of the rear center belt and are bifurcated. Preferably, a hip belt is further provided, and a support tool for supporting the torso belt wound around the operator's torso is provided on the back center belt.

  In this case, the weight applied to the waist belt when the tool bag is suspended from the waist belt is dispersed and supported by the shoulder belt buckle of the shoulder belt and the support member of the back center belt. It is possible to effectively reduce an operator's load due to weight. In addition, since the support position of the body belt by the support tool is the center of the back surface, the tool bag is unlikely to interfere with the support tool when the tool bag is attached to the body belt, and the degree of freedom of the tool bag attachment position is high.

  Further, when the body belt is provided with an engaging member that engages with the support for the back center belt, the back of the body belt is supported by preventing the body belt from coming off from the support during work at a high place. Can be stabilized.

  The harness type safety belt of the present invention attaches the torso belt by connecting both ends of the torso belt to the shoulder belt, so it is possible to attach the torso belt while the tool bag is already attached to the torso belt. It is. Further, by separating both ends of the body belt from the shoulder belt, it is possible to remove the body belt while the tool bag is attached to the body belt. As described above, this harness-type safety belt can be attached and detached while the tool bag is attached to the waist belt, and is excellent in the ease of attaching and detaching the waist belt.

Overall view showing a harness-type safety belt according to an embodiment of the present invention The figure which was seen from the operator's front side in the state where the worker wore the harness type safety belt of FIG. The figure which was seen from the operator's back side in the state where the worker wore the harness type safety belt of FIG. The enlarged view of the vicinity of the engaging member of the harness type safety belt shown in FIG. Sectional view along line VV in FIG. The figure which shows the state which removed the trunk | drum belt shown in FIG. The figure which shows the state which removed the trunk | drum belt shown in FIG. The disassembled perspective view which shows the other example of the engaging member shown in FIG. Sectional drawing which shows the state which the engaging member shown in FIG. 8 engaged with the support tool

  FIG. 1 shows a harness-type safety belt according to an embodiment of the present invention. This harness-type safety belt includes a pair of shoulder belts 1 and 1 that are hung on both shoulders of the operator, a pair of thigh belts 2 and 2 that are attached to the thighs of both feet of the operator, a back center belt 3, It has a pair of buttocks belts 4 and 4 and a torso belt 5 wound around the operator's torso. These belts are formed of a synthetic fiber fabric such as polyester or nylon.

  As shown in FIGS. 2 and 3, the pair of shoulder belts 1, 1 extends from the D-ring stopper 6 disposed on the operator's back in a bifurcated manner and passes through both shoulders of the operator. The front side of the arm extends downward from both shoulders. Each shoulder belt 1 includes a length adjuster 7 that adjusts the length of the shoulder belt 1 according to the physique of the operator, a belt stopper 8 that holds an excess length portion of the belt generated by the length adjuster 7, A center buckle 9 and a waist belt buckle 10 are provided on the front side of the operator.

  As shown in FIG. 1, the center buckle 9 includes a tongue plate 9 </ b> A attached to one shoulder belt 1 of the pair of shoulder belts 1, 1 and a buckle body 9 </ b> B attached to the other shoulder belt 1. Become. Then, by inserting the tongue plate 9A into the buckle body 9B, the pair of shoulder belts 1 and 1 are detachably connected to each other. When the tongue plate 9A is inserted into the buckle body 9B, the center buckle 9 is in a locked state in which the tongue plate 9A is held by the buckle body 9B, and the locked state is obtained by operating the operation piece 11 provided on the buckle body 9B. It is a one-touch buckle to release.

  The waist belt buckle 10 includes a tongue plate 10 </ b> A attached to both ends of the waist belt 5, and a buckle body 10 </ b> B attached to each shoulder belt 1. Then, with the torso belt 5 wrapped around the operator's torso, the tongue plates 10A at both ends of the torso belt 5 are inserted into the buckle body 10B of each shoulder belt 1 so that both ends of the torso belt 5 are attached to the shoulder belt 1. It is designed to be detachably connected. Similarly to the center buckle 9, the trunk belt buckle 10 is locked when the tongue plate 10A is inserted into the buckle body 10B, and the operation piece 12 provided on the buckle body 10B is moved. It is a one-touch buckle that is unlocked when operated.

  As shown in FIG. 2, the torso belt buckle 10 is disposed at a position where the waist is raised in a state where the operator wears the harness-type safety belt, and the center buckle 9 is at the same height as the torso belt buckle 10. Has been placed. Specifically, a short belt 13 is fixed to each shoulder belt 1 so as to cross the shoulder belt 1 on the front side of the worker horizontally at the waist level, and a waist belt buckle 10 is attached to one end of the short belt 13. The center buckle 9 is attached to the other end of the short belt 13. The short belt 13 is fixed to the shoulder belt 1 by sewing the belts together.

  The pair of shoulder belts 1, 1 on the front side of the operator extends to form an X shape with the center buckle 9 connected. That is, the distance between the pair of shoulder belts 1, 1 on the front side of the operator is gradually narrowed downward from the shoulder so as to be the narrowest at the position of the center buckle 9, and downward from the center buckle 9. It is getting wider gradually. Here, each shoulder belt 1 is bent in a dogleg shape at the height position of the waist belt buckle 10. For example, the shoulder belt 1 is formed on the shoulder belt 1 on the front side of the operator. Can be formed by twisting and twisting a half belt at the waist height position and bending the short belt 13 on the bent portion.

  The thigh belt 2 is connected to the lower end of the shoulder belt 1 on the front side of the operator. The connection between the thigh belt 2 and the shoulder belt 1 is performed by sewing. The thigh belt 2 is formed in an annular shape that winds around the thigh, and a part of the thigh belt 2 is detachably connected by a thigh belt buckle 14.

  As shown in FIG. 3, the shoulder belts 1 and 1 on the back side of the worker are bifurcated upward from the D ring stopper 6 and extend to reach both shoulders of the worker. The center of the operator's back is extended downward from the stop 6. The buttocks belt 4 is divided into two forks from the lower end of the back center belt 3 and connected to the thigh belts 2. The thigh belt 2 and the buttocks belt 4 are connected by passing the thigh belt 2 through a loop formed at the lower end of the buttocks belt 4, and the relative position of the buttocks belt 4 with respect to the thigh belt 2 is adjusted according to the physique of the operator. It can be done.

  A plurality of long holes 15 for passing the belt are formed in the D ring stopper 6 at intervals in the vertical direction. By passing the belt through the D ring 16 between the adjacent long holes 15, the D ring 16 for lanyard connection is formed. It is attached to the D ring stop 6. The D ring 16 may be attached to the D ring stopper 6 via a shock absorber or a strap.

  At the lower end of the back center belt 3, a support 17 that supports the trunk belt 5 wound around the operator's trunk is attached. As shown in FIGS. 4 and 5, the support 17 is made of a rectangular metal plate, and a plurality of elongated holes 18 are formed at intervals in the vertical direction, and the belt is passed through the elongated holes 18 in order. A tool 17 is fixed to the back center belt 3.

  An engagement member 19 that engages with the support 17 of the back center belt 3 is attached to the trunk belt 5 on the back side of the operator. A plurality of elongated holes 20 extending in the up-down direction are formed in the engaging member 19 at intervals in the left-right direction, and the trunk belt 5 is passed through the elongated holes 20 in order to be fixed to the trunk belt 5. A fitting recess 21 that is wider than the back center belt 3 and narrower than the support tool 17 is formed at the lower edge of the engagement member 19, and between the support tool 17 and the back center belt 3. With the engagement member 19 inserted, the edge of the fitting recess 21 engages with the support member 17 to prevent relative movement of the body belt 5 with respect to the back center belt 3.

  The shoulder belt 1, the back center belt 3, and the buttocks belt 4 can be separate belt members connected at their respective boundary positions. However, as shown in FIG. The belt is inserted in a state of being overlapped with the elongated hole 15 of the D-ring stopper 6 and the elongated hole 18 of the support 17 disposed at a distance below the D-ring stopper 6, and the two belts are The upper part of the D ring stopper 6 and the lower part of the support 17 are divided into two parts, and the upper part of the two belts from the D ring stopper 6 is the shoulder belt 1. It is preferable that the portion between 6 and the support 17 is the back central belt 3 and the lower portion of the support 17 is the hip belt 4. In this case, there is no sewing portion for connecting the belt at each boundary position of the shoulder belt 1, the back center belt 3, and the buttocks belt 4. Therefore, a decrease in strength due to wear of the sewing thread is prevented, and safety is improved. Can be increased.

  Next, the usage example of the harness type safety belt mentioned above is demonstrated.

  When wearing the harness-type safety belt, first, a pair of shoulder belts 1 and 1 are hung on both shoulders in a state where the center buckle 9, the waist belt buckle 10, and the thigh belt buckle 14 are all separated. Next, as shown in FIG. 6, the pair of shoulder belts 1 and 1 are connected to each other on the front side of the operator by bringing the center buckle 9 into a connected state. Subsequently, each thigh belt 2 is wound around the thigh of the foot, and the thigh belt buckle 14 is connected. Thereafter, as shown in FIG. 2, the body belt 5 is wound around the body, and both ends of the body belt 5 are connected to the shoulder belt 1 by the body belt buckle 10. At this time, since the shoulder belts 1 and 1 are connected at the same height as the trunk belt buckle 10 by the center buckle 9, the opening of the shoulder belts 1 and 1 and the loosening of the trunk belt 5 are prevented at the same time. Finally, the trunk belt 5 on the back side of the operator is hooked on the support 17 of the back center belt 3 from above, and the engagement member 19 of the trunk belt 5 is engaged with the support 17.

  When the tool bag 22 (see FIG. 3) is used, the tool bag 22 is attached to the drum belt 5 in advance before the drum belt 5 is attached, and both ends of the drum belt 5 are connected to the drum belt 5 with the tool bag 22 attached. The belt buckle 10 is connected to the shoulder belt 1.

  Then, one end of a lanyard (not shown) is connected to the D ring 16 of the D ring stopper 6 and the other end of the lanyard is connected to a structure at the work site, and work at a high place such as a construction site is performed.

  The tool bag 22 may be temporarily removed because it becomes light at work breaks. At this time, as shown in FIGS. 6 and 7, the body belt buckle 10 is operated to separate both ends of the body belt 5 from the shoulder belt 1, and the body belt 5 is removed with the tool bag 22 attached. When the rest time is over and the work is resumed, as shown in FIGS. 2 and 3, the waist belt 5 with the tool bag 22 attached is again wound around the waist, and both ends of the waist belt 5 are connected to the waist belt. By connecting to the shoulder belt 1 with the buckle 10, the body belt 5 is attached together with the tool bag 22.

  At this time, if a plurality of body belts 5 with the tool bag 22 attached are prepared in advance according to the work contents, the entire body belt 5 with the tool bag 22 is exchanged, so that the tool bag carried during the work is carried out. 22 can be replaced quickly.

  When the work is finished and the harness-type safety belt is removed from the body, the thigh belt buckle 14 is separated, the center buckle 9 is separated, and the shoulder belts 1 and 1 on the front side of the operator are opened to the left and right. Remove the shoulder belts 1 and 1 from the body and remove the harness-type safety belt from the body. At this time, it is possible to perform the operation of removing the shoulder belts 1 and 1 from the shoulder while the both ends of the trunk belt 5 are connected to the shoulder belt 1 without separating the trunk belt buckle 10. Thereafter, when the harness-type safety belt is attached again, the shoulder belts 1 and 1 can be hung on the shoulder while the both ends of the body belt 5 are connected to the shoulder belt 1.

  In this harness-type safety belt, the body belt 5 is attached by connecting both ends of the body belt 5 to the shoulder belt 1, so that the body belt 5 is attached with the tool bag 22 attached to the body belt 5 in advance. Is possible. Further, by separating both ends of the body belt 5 from the shoulder belt 1, it is possible to remove the body belt 5 while the tool bag 22 is attached to the body belt 5. As described above, the harness-type safety belt can be attached to and detached from the trunk belt 5 while the tool bag 22 is attached to the trunk belt 5, and is excellent in the detachable operability of the trunk belt 5.

  In addition, the harness-type safety belt can support the weight of the tool bag 22 suspended from the waist belt 5 with the shoulders instead of the waist, so the load on the operator is small. Since the weight applied to the waist belt 5 when the tool bag 22 is suspended from the waist belt 5 is dispersed and supported by the waist belt buckle 10 of the shoulder belt 1 and the support 17 of the back center belt 3, The load on the operator due to the weight of the tool bag 22 can be effectively reduced.

  In addition, the harness-type safety belt is supported by the tool bag 22 when the tool bag 22 is attached to the body belt 5 because the support position of the body belt 5 by the support 17 is one central position in the back (the center in the left-right direction). It is difficult to interfere with the tool 17, and the degree of freedom of the attachment position of the tool bag 22 is high.

  Further, in this harness-type safety belt, since the engagement member 19 that engages with the support 17 of the back center belt 3 is provided on the body belt 5, the body belt 5 is detached from the support 17 during work at a high place. Can be prevented, and the back side support of the waist belt 5 can be stabilized.

  The harness-type safety belt supports the impact load at the time of preventing the fall by stopping the fall of the worker by the lanyard connected to the D-ring 16 on the back, and supports the shoulder belt 1 and the thigh belt 2 in a distributed manner. At this time, since the shoulder belts 1 and 1 on the front side of the operator extend so as to have an X shape, the shoulder belt 1 is difficult to come off from the shoulder, and the situation where the body falls out between the shoulder belts 1 and 1 is prevented. Can do.

  8 and 9 show another example of the engaging member 19. The engagement member 19 includes a rectangular vertical plate portion 31 in which a plurality of elongated holes 30 extending in the vertical direction are formed at intervals in the left-right direction, and a front portion from an upper portion of the elongated hole 30 of the vertical plate portion 31. The horizontal plate portion 32 provided so as to extend, the fitting hole 33 formed so as to penetrate the horizontal plate portion 32 in the vertical direction, and the horizontal plate portion 32 so as to come into contact with the surface of the back central belt 3. It consists of an attachment plate portion 34 provided at the front end.

  The engaging member 19 is fixed to the body belt 5 by passing the body belt 5 through the elongated holes 30 in order. Then, when the fitting hole 33 of the horizontal plate portion 32 is fitted to the upper outer periphery of the support member 17, the edge of the fitting hole 33 engages with the support member 17, and the waist belt 5 with respect to the back center belt 3 is engaged. Relative movement is prevented.

  When this engagement member 19 is used, when the engagement member 19 is engaged with the support member 17, the trunk belt 5 comes below the engagement portion between the engagement member 19 and the support member 17. Therefore, the engaging member 19 is suspended from the support 17, the posture of the engaging member 19 is stabilized, and the engagement member 19 can be effectively prevented from being detached from the support 17. It becomes.

DESCRIPTION OF SYMBOLS 1 Shoulder belt 2 Thigh belt 3 Back center belt 4 Bottom belt 5 Torso belt 6 D Ring stopper 9 Center buckle 10 Torso belt buckle 17 Support tool 19 Engagement member

Claims (2)

A pair of shoulder belts (1) extending from a D-ring stop (6) disposed on the operator's back, bifurcating upward and passing through both shoulders of the operator, and extending downward from both shoulders on the front side of the operator And a pair of thigh belts (2) connected to the lower end of each shoulder belt (1), and both ends of a torso belt (5) wound around the operator's torso are freely detachable from the shoulder belt (1). a connection to the torso belt buckle (10), and said pair of shoulder belts (1) engaging with each other detachably connected to the center buckle at the same height as the torso belt buckle (10) (9) possess,
A back center belt (3) extending downward from the center of the operator's back surface from the D-ring stop (6), and a bifurcated extension from the lower end of the back center belt (3) to the pair of thigh belts (2) The back belt (3) is further provided with a support tool (17) for supporting the torso belt (5) in a state of being wound around an operator's torso. Harness type safety belt. The harness-type safety belt according to claim 1 , wherein the body belt (5) is provided with an engagement member (19) that engages with a support (17) of the back center belt (3).

Images